Wireless base station



FIG. 1 is a front view of the wireless base station showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front right perspective view thereof.

The broken lines show subject matter of the base station that forms no part of the claimed design. 

CLAIM The ornamental design for a wireless base station, as shown and described. 